Caching Expert
How would you handle cache synchronization in a distributed environment?
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Synchronize caches by increasing cache size.
Use caching only for read-heavy workloads to avoid synchronization issues.
Use distributed locks and consensus protocols to ensure data consistency.
Synchronize caches by using different keys for each cache.
Name situations when to use different replacement strategies?
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Use different strategies based on access patterns and data size.
Always use the same replacement strategy regardless of the situation.
Change the strategy based on server load only.
Use the replacement strategy with the longest name.
What is cache replacement?
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Encrypting cache data for security purposes.
Backing up cache data to a secure location.
Compressing cache data to save space.
Replacing old data in the cache with new data.
What are some common cache writing strategies?
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Load balancing, failover, and redundancy.
Compression, encryption, and replication.
Write-through, write-back, and write-around.
Sharding, partitioning, and clustering.
Name some common scenarios when caching should be used.
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Caching should be used for frequently accessed data to reduce load times.
Caching is useful for encrypting sensitive information.
Caching is ideal for storing user passwords.
Caching helps in database schema design.
Describe the impact of cache size on performance.
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Cache size has no impact on system performance.
Smaller cache sizes always increase data retrieval speed.
Larger cache sizes generally improve performance by reducing cache misses.
Increasing cache size reduces the need for server backups.
Name some cache invalidation strategies.
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Load balancing, failover, and clustering.
Sharding, replication, and partitioning.
Compression, encryption, and decryption.
Time-to-live, write-through, and cache-aside.
What is cache invalidation?
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The method of backing up cache data to a secure location.
The action of encrypting cache data for security.
The process of removing outdated data from the cache.
The process of expanding cache storage capacity.
What is a cache miss?
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An event where requested data is not found in the cache.
An event where the database becomes unavailable.
A situation where the server fails to respond.
A scenario where data retrieval is slower than usual.
What is a cache key and how is it used?
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A unique identifier used to store and retrieve cached data.
A password used for user authentication.
A special key used to unlock secure databases.
A tool for managing database connections.
What is caching?
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A process of storing frequently accessed data in a temporary storage.
A process of compressing data to save storage space.
A method of securing data using encryption.
A technique to balance load among servers.